Statistics of surface renewal of passive scalars in free-surface turbulence
We perform direct numerical simulation to study the transport of gas and heat as passive scalars in free-surface turbulence. Our analysis focuses on the surface age of surface fluid particles, i.e. the time elapsed since the last surface renewal they experienced. Using Lagrangian tracing of fluid pa...
Gespeichert in:
| Veröffentlicht in: | Journal of fluid mechanics 2011-07, Vol.678, p.379-416 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 416 |
|---|---|
| container_issue | |
| container_start_page | 379 |
| container_title | Journal of fluid mechanics |
| container_volume | 678 |
| creator | KERMANI, ALIREZA KHAKPOUR, HAMID R. SHEN, LIAN IGUSA, TAKERU |
| description | We perform direct numerical simulation to study the transport of gas and heat as passive scalars in free-surface turbulence. Our analysis focuses on the surface age of surface fluid particles, i.e. the time elapsed since the last surface renewal they experienced. Using Lagrangian tracing of fluid particles combined with heat diffusion analysis, we are able to directly quantify surface age to illustrate scalar characteristics at different stages of interfacial transfer. Results show that at the early stage of surface renewal, vertical advection associated with upwellings greatly enhances surface gas flux; random surface renewal model does not apply at this stage when most of the interfacial gas transfer occurs. After a fluid particle leaves the upwelling region, it may enter a nearby downwelling region immediately, where the gas flux is sharply reduced but the variation in surface temperature is small; alternatively, the fluid particle may travel along the surface for some time before it is absorbed by a downwelling, where the surface temperature has changed significantly due to long duration of diffusion and the gas flux is also reduced. To gain further insight into the relationships between surface velocity and scalar quantities, we perform a statistical analysis of upwellings using clustering and nonlinear regression. With this analysis, we are able to provide qualitative and quantitative descriptions of the skewed probability density functions associated with the surface divergence, temperature and gas flux that support our physics-based investigation of surface renewal and surface age. |
| doi_str_mv | 10.1017/jfm.2011.118 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1642261321</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><cupid>10_1017_jfm_2011_118</cupid><sourcerecordid>2388414231</sourcerecordid><originalsourceid>FETCH-LOGICAL-c435t-5a11c083b717e06dac35351fbb23de691113327ee3147561a6a3a57c316648f03</originalsourceid><addsrcrecordid>eNqFkU1Lw0AQhhdRsH7c_AFBEDyYurOf7VGKX1jwoJ6XyXZWUtKk7iaK_94Eq4IIngaGZ55h5mXsCPgYONjzZViNBQcYA0y22AiUmebWKL3NRpwLkQMIvsv2UlpyDpJP7YjdPbTYlqktfcqakKUuBvSURarpDauhtcaUylfKkscKY8rKOguRKP9C2y4WXUW1pwO2E7BKdLip--zp6vJxdpPP769vZxfz3Cup21wjgOcTWViwxM0CvdRSQygKIRdkpgAgpbBEEpTVBtCgRG29BGPUJHC5z04_vevYvHSUWrcqk6eqwpqaLjkwSggDUsD_qFaghFRc9ejxL3TZdLHuD3ETqySXFkwPnX1CPjYpRQpuHcsVxncH3A0ZuD4DN2Tg-gx6_GTjxOF9IWLty_Q9I5Sw2opBO95ocVXEcvFMP8v_FH8APMKTdQ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>874303716</pqid></control><display><type>article</type><title>Statistics of surface renewal of passive scalars in free-surface turbulence</title><source>Cambridge University Press Journals Complete</source><creator>KERMANI, ALIREZA ; KHAKPOUR, HAMID R. ; SHEN, LIAN ; IGUSA, TAKERU</creator><creatorcontrib>KERMANI, ALIREZA ; KHAKPOUR, HAMID R. ; SHEN, LIAN ; IGUSA, TAKERU</creatorcontrib><description>We perform direct numerical simulation to study the transport of gas and heat as passive scalars in free-surface turbulence. Our analysis focuses on the surface age of surface fluid particles, i.e. the time elapsed since the last surface renewal they experienced. Using Lagrangian tracing of fluid particles combined with heat diffusion analysis, we are able to directly quantify surface age to illustrate scalar characteristics at different stages of interfacial transfer. Results show that at the early stage of surface renewal, vertical advection associated with upwellings greatly enhances surface gas flux; random surface renewal model does not apply at this stage when most of the interfacial gas transfer occurs. After a fluid particle leaves the upwelling region, it may enter a nearby downwelling region immediately, where the gas flux is sharply reduced but the variation in surface temperature is small; alternatively, the fluid particle may travel along the surface for some time before it is absorbed by a downwelling, where the surface temperature has changed significantly due to long duration of diffusion and the gas flux is also reduced. To gain further insight into the relationships between surface velocity and scalar quantities, we perform a statistical analysis of upwellings using clustering and nonlinear regression. With this analysis, we are able to provide qualitative and quantitative descriptions of the skewed probability density functions associated with the surface divergence, temperature and gas flux that support our physics-based investigation of surface renewal and surface age.</description><identifier>ISSN: 0022-1120</identifier><identifier>EISSN: 1469-7645</identifier><identifier>DOI: 10.1017/jfm.2011.118</identifier><identifier>CODEN: JFLSA7</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Applied fluid mechanics ; Computational fluid dynamics ; Environmental engineering ; Exact sciences and technology ; Fluctuations ; Fluid dynamics ; Fluid flow ; Fluids ; Flux ; Free surfaces ; Fundamental areas of phenomenology (including applications) ; Hydrodynamics, hydraulics, hydrostatics ; Mechanical engineering ; Physics ; Scalars ; Statistical analysis ; Surface temperature ; Surface velocity ; Turbulence ; Turbulent flow ; Upwelling</subject><ispartof>Journal of fluid mechanics, 2011-07, Vol.678, p.379-416</ispartof><rights>Copyright © Cambridge University Press 2011. The online version of this article is published within an Open Access environment subject to the conditions of the Creative Commons Attribution-NonCommercial-ShareAlike licence <http://creativecommons.org/licenses/by-nc-sa/2.5/>. The written permission of Cambridge University Press must be obtained for commercial re-use.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © Cambridge University Press 2011. The online version of this article is published within an Open Access environment subject to the conditions of the Creative Commons Attribution-NonCommercial-ShareAlike licence . The written permission of Cambridge University Press must be obtained for commercial re-use.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c435t-5a11c083b717e06dac35351fbb23de691113327ee3147561a6a3a57c316648f03</citedby><cites>FETCH-LOGICAL-c435t-5a11c083b717e06dac35351fbb23de691113327ee3147561a6a3a57c316648f03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S0022112011001182/type/journal_article$$EHTML$$P50$$Gcambridge$$Hfree_for_read</linktohtml><link.rule.ids>164,314,780,784,27915,27916,55619</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24275726$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>KERMANI, ALIREZA</creatorcontrib><creatorcontrib>KHAKPOUR, HAMID R.</creatorcontrib><creatorcontrib>SHEN, LIAN</creatorcontrib><creatorcontrib>IGUSA, TAKERU</creatorcontrib><title>Statistics of surface renewal of passive scalars in free-surface turbulence</title><title>Journal of fluid mechanics</title><addtitle>J. Fluid Mech</addtitle><description>We perform direct numerical simulation to study the transport of gas and heat as passive scalars in free-surface turbulence. Our analysis focuses on the surface age of surface fluid particles, i.e. the time elapsed since the last surface renewal they experienced. Using Lagrangian tracing of fluid particles combined with heat diffusion analysis, we are able to directly quantify surface age to illustrate scalar characteristics at different stages of interfacial transfer. Results show that at the early stage of surface renewal, vertical advection associated with upwellings greatly enhances surface gas flux; random surface renewal model does not apply at this stage when most of the interfacial gas transfer occurs. After a fluid particle leaves the upwelling region, it may enter a nearby downwelling region immediately, where the gas flux is sharply reduced but the variation in surface temperature is small; alternatively, the fluid particle may travel along the surface for some time before it is absorbed by a downwelling, where the surface temperature has changed significantly due to long duration of diffusion and the gas flux is also reduced. To gain further insight into the relationships between surface velocity and scalar quantities, we perform a statistical analysis of upwellings using clustering and nonlinear regression. With this analysis, we are able to provide qualitative and quantitative descriptions of the skewed probability density functions associated with the surface divergence, temperature and gas flux that support our physics-based investigation of surface renewal and surface age.</description><subject>Applied fluid mechanics</subject><subject>Computational fluid dynamics</subject><subject>Environmental engineering</subject><subject>Exact sciences and technology</subject><subject>Fluctuations</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Fluids</subject><subject>Flux</subject><subject>Free surfaces</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Hydrodynamics, hydraulics, hydrostatics</subject><subject>Mechanical engineering</subject><subject>Physics</subject><subject>Scalars</subject><subject>Statistical analysis</subject><subject>Surface temperature</subject><subject>Surface velocity</subject><subject>Turbulence</subject><subject>Turbulent flow</subject><subject>Upwelling</subject><issn>0022-1120</issn><issn>1469-7645</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>IKXGN</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqFkU1Lw0AQhhdRsH7c_AFBEDyYurOf7VGKX1jwoJ6XyXZWUtKk7iaK_94Eq4IIngaGZ55h5mXsCPgYONjzZViNBQcYA0y22AiUmebWKL3NRpwLkQMIvsv2UlpyDpJP7YjdPbTYlqktfcqakKUuBvSURarpDauhtcaUylfKkscKY8rKOguRKP9C2y4WXUW1pwO2E7BKdLip--zp6vJxdpPP769vZxfz3Cup21wjgOcTWViwxM0CvdRSQygKIRdkpgAgpbBEEpTVBtCgRG29BGPUJHC5z04_vevYvHSUWrcqk6eqwpqaLjkwSggDUsD_qFaghFRc9ejxL3TZdLHuD3ETqySXFkwPnX1CPjYpRQpuHcsVxncH3A0ZuD4DN2Tg-gx6_GTjxOF9IWLty_Q9I5Sw2opBO95ocVXEcvFMP8v_FH8APMKTdQ</recordid><startdate>20110710</startdate><enddate>20110710</enddate><creator>KERMANI, ALIREZA</creator><creator>KHAKPOUR, HAMID R.</creator><creator>SHEN, LIAN</creator><creator>IGUSA, TAKERU</creator><general>Cambridge University Press</general><scope>IKXGN</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TB</scope><scope>7U5</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H8D</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KR7</scope><scope>L.G</scope><scope>L6V</scope><scope>L7M</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>P5Z</scope><scope>P62</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>S0W</scope><scope>7TG</scope><scope>KL.</scope></search><sort><creationdate>20110710</creationdate><title>Statistics of surface renewal of passive scalars in free-surface turbulence</title><author>KERMANI, ALIREZA ; KHAKPOUR, HAMID R. ; SHEN, LIAN ; IGUSA, TAKERU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c435t-5a11c083b717e06dac35351fbb23de691113327ee3147561a6a3a57c316648f03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Applied fluid mechanics</topic><topic>Computational fluid dynamics</topic><topic>Environmental engineering</topic><topic>Exact sciences and technology</topic><topic>Fluctuations</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>Fluids</topic><topic>Flux</topic><topic>Free surfaces</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Hydrodynamics, hydraulics, hydrostatics</topic><topic>Mechanical engineering</topic><topic>Physics</topic><topic>Scalars</topic><topic>Statistical analysis</topic><topic>Surface temperature</topic><topic>Surface velocity</topic><topic>Turbulence</topic><topic>Turbulent flow</topic><topic>Upwelling</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>KERMANI, ALIREZA</creatorcontrib><creatorcontrib>KHAKPOUR, HAMID R.</creatorcontrib><creatorcontrib>SHEN, LIAN</creatorcontrib><creatorcontrib>IGUSA, TAKERU</creatorcontrib><collection>Cambridge Journals Open Access</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Research Library</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><collection>DELNET Engineering & Technology Collection</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><jtitle>Journal of fluid mechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>KERMANI, ALIREZA</au><au>KHAKPOUR, HAMID R.</au><au>SHEN, LIAN</au><au>IGUSA, TAKERU</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Statistics of surface renewal of passive scalars in free-surface turbulence</atitle><jtitle>Journal of fluid mechanics</jtitle><addtitle>J. Fluid Mech</addtitle><date>2011-07-10</date><risdate>2011</risdate><volume>678</volume><spage>379</spage><epage>416</epage><pages>379-416</pages><issn>0022-1120</issn><eissn>1469-7645</eissn><coden>JFLSA7</coden><abstract>We perform direct numerical simulation to study the transport of gas and heat as passive scalars in free-surface turbulence. Our analysis focuses on the surface age of surface fluid particles, i.e. the time elapsed since the last surface renewal they experienced. Using Lagrangian tracing of fluid particles combined with heat diffusion analysis, we are able to directly quantify surface age to illustrate scalar characteristics at different stages of interfacial transfer. Results show that at the early stage of surface renewal, vertical advection associated with upwellings greatly enhances surface gas flux; random surface renewal model does not apply at this stage when most of the interfacial gas transfer occurs. After a fluid particle leaves the upwelling region, it may enter a nearby downwelling region immediately, where the gas flux is sharply reduced but the variation in surface temperature is small; alternatively, the fluid particle may travel along the surface for some time before it is absorbed by a downwelling, where the surface temperature has changed significantly due to long duration of diffusion and the gas flux is also reduced. To gain further insight into the relationships between surface velocity and scalar quantities, we perform a statistical analysis of upwellings using clustering and nonlinear regression. With this analysis, we are able to provide qualitative and quantitative descriptions of the skewed probability density functions associated with the surface divergence, temperature and gas flux that support our physics-based investigation of surface renewal and surface age.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/jfm.2011.118</doi><tpages>38</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-1120 |
| ispartof | Journal of fluid mechanics, 2011-07, Vol.678, p.379-416 |
| issn | 0022-1120 1469-7645 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1642261321 |
| source | Cambridge University Press Journals Complete |
| subjects | Applied fluid mechanics Computational fluid dynamics Environmental engineering Exact sciences and technology Fluctuations Fluid dynamics Fluid flow Fluids Flux Free surfaces Fundamental areas of phenomenology (including applications) Hydrodynamics, hydraulics, hydrostatics Mechanical engineering Physics Scalars Statistical analysis Surface temperature Surface velocity Turbulence Turbulent flow Upwelling |
| title | Statistics of surface renewal of passive scalars in free-surface turbulence |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-14T23%3A14%3A18IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Statistics%20of%20surface%20renewal%20of%20passive%20scalars%20in%20free-surface%20turbulence&rft.jtitle=Journal%20of%20fluid%20mechanics&rft.au=KERMANI,%20ALIREZA&rft.date=2011-07-10&rft.volume=678&rft.spage=379&rft.epage=416&rft.pages=379-416&rft.issn=0022-1120&rft.eissn=1469-7645&rft.coden=JFLSA7&rft_id=info:doi/10.1017/jfm.2011.118&rft_dat=%3Cproquest_cross%3E2388414231%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=874303716&rft_id=info:pmid/&rft_cupid=10_1017_jfm_2011_118&rfr_iscdi=true |